Chalcogen Attached Directly To The Nitrogen By Nonionic Bonding Patents (Class 556/422)
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Patent number: 4841083Abstract: There is here disclosed a ladder polysilane represented by the general formula (I): ##STR1## wherein n is a positive integer, and R is a halogen atom, a hydrogen atom, a hydroxyl group, an alkyl group, an alkenyl group, an aryl group or an alkoxy group having 20 or less carbon atoms, and the alkyl, alkenyl, aryl or alkoxy group may contain a functional group such as --COOH, --SO.sub.3 H, --NH.sub.2, --NO.sub.2, --NCO, --F, --Cl, --BR, --I or --OH. In addition, a method for preparing the aforesaid ladder polysilane is also disclosed here.Type: GrantFiled: May 27, 1988Date of Patent: June 20, 1989Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Yoichiro Nagai, Hideyuki Matsumoto
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Patent number: 4824950Abstract: This invention relates to chiral compositions.Type: GrantFiled: September 3, 1987Date of Patent: April 25, 1989Assignee: Sandoz Pharm. Corp.Inventor: Sandor Barcza
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Patent number: 4820829Abstract: There are disclosed novel substituted o-phthalaldehydes of formula I ##STR1## wherein at least one of the substituents R.sub.1, R.sub.2, R.sub.3, R.sub.4 is Q(alkyl).sub.3, --CH.sub.2 --Q(alkyl).sub.3, --O--Q(alkyl).sub.3, --Q(aryl).sub.3 or --Q(alkylenearyl).sub.3, wherein Q is Si, Sn or Ge, the alkyl moieties contain 1 to 12 carbon atoms, the aryl groups contain 6 or 12 ring carbon atoms and the alkylene radicals contain 1 to 4 carbon atoms, and each of the remaining substituents R.sub.1 to R.sub.4 is a hydrogen or halogen atom or a cyano, nitro, carboxyl or hydroxyl group, a C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio or an alkoxycarbonyl group containing 1 to 4 carbon atoms in the alkoxy moiety.The novel o-phthalaldehydes can be polymerized to give polymers that can be used as photoresists.Type: GrantFiled: January 8, 1987Date of Patent: April 11, 1989Assignee: Ciba-Geigy CorporationInventor: Alfred Steinmann
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Patent number: 4812512Abstract: Novel supports useful in solid phase synthesis of oligonucleotides of the formula ##STR1## wherein .circle.P is a material selected from the group consisting of functionalized glass micropellets, silica functionalized by aminoalkyl trialkoxysilane capable of to obtain for ##STR2## Kieselguhr, polytetrafluoroethylene, cellulose and metallic oxides, m is an integer from 1 to 20, A is selected from the group consisting of alkyl of 1 to 20 carbon atoms, saturated cycloalkyl of 3 to 12 carbon atoms, phenyl and 5 to 6 member heterocycles, x and y are an integer from 0 to 20, x.sub.1 is an integer from 1 to 20 and y.sub.1 is an integer from 0 to 10, a process for the preparation of said supports, the use of said supports and intermediates.Type: GrantFiled: June 26, 1986Date of Patent: March 14, 1989Assignee: Roussel UclafInventors: Jean Buendia, Jeanine Nierat
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Patent number: 4801659Abstract: In a preferred embodiment this invention provides novel organopolysiloxanes which exhibit nonlinear optical response.Illustrative of an invention organopolysiloxane is a polymer corresponding to the formula: ##STR1## where n is an integer of at least 5.Type: GrantFiled: October 27, 1986Date of Patent: January 31, 1989Assignee: Hoechst Celanese Corp.Inventor: Thomas M. Leslie
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Patent number: 4780504Abstract: Novel supports useful in solid phase synthesis of oligonucleotides of the formula ##STR1## wherein .circle. is micro pellets of a material selected from the group consisting of glass, silica, Kieselguhr, polytetrafluoroethylene, cellulose and metallic oxides, m is an integer from 1 to 20, A is selected from the group consisting of alkylene of 1 to 20 carbon atoms, saturated cycloalkylene of 3 to 12 carbon atoms, phenyl and 5 to 6 member heterocycles, x is an integer from 0 to 20, x.sub.1 is an integer from 0 to 10 and the amino group may be in the m-, p- or o-position, a process for the preparation of said supports, the use of said supports and intermediates.Type: GrantFiled: June 5, 1986Date of Patent: October 25, 1988Assignee: Roussel UclafInventors: Jean Buendia, Jeanine Nierat
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Patent number: 4778909Abstract: Fast high resolution separations of biopolymers with retention of biological activity have been achieved by hydrophobic interaction chromatography using trialkoxy silyl ethers of the general formula(RO).sub.3 Si--(CH.sub.2).sub.m --O--(CH.sub.2 CH.sub.2 O).sub.n --(CH.sub.2).sub.p R'chemically bonded to silica-based chromatographic supports. In the formula R is alkyl of from one to five carbons, m is an integer from two to five, n is an integer from one to five, p is an integer from zero of ten, and R' is methyl, phenyl, or substituted phenyl. Stable and reproducible bonded phases are prepared in a novel solventless procedure by a bonding process which uses a defined and controlled amount of water on the silica surface and a gaseous or volatile basic catalyst such as ammonia to produce a controlled amount of silane polymerization and cross-linking in addition to extensive bonding between silane and silica.Type: GrantFiled: May 11, 1984Date of Patent: October 18, 1988Assignee: Northeastern UniversityInventors: Barry L. Karger, Binyamin Feibush, Neil T. Miller, Alvaro Figueroa
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Patent number: 4766231Abstract: Disclosed is a process for the production of ketoximosilanes and ketoximoalkoxysilanes. Ketoximes are reacted with alkyl trialkoxysilanes in the presence of a catalyst. The reaction is catalyzed by basic compounds which are dissolved or suspended in the ketoxime. The basic compounds that are used are alkali metals and, preferably, the oxides, hydroxides and carbonates of the elements from the 1st and 2nd group and the 3rd sub-group of the Periodic Table of Elements and lanthanides. The process according to the invention prevents the decomposition and explosion that easily occur in the known processes. The ketoximosilanes prepared according to the invention are valuable crosslinking agents for organopolysiloxane compositions.Type: GrantFiled: December 4, 1987Date of Patent: August 23, 1988Assignee: Dynamit Nobel AGInventor: Gunter Zoche
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Patent number: 4720534Abstract: Disclosed is a free-radical addition product of a mercapto-functional polyhydric alcohol and a vinyl-type silane having at least one hydrolyzable group directly attached to a silicon atom, the addition product prepared by reacting the mercapto-functional polyhydric alcohol and the vinyl-type silane in the presence of a free radical initiator. The addition product contains at least two hydroxyl groups bonded to carbon atoms and at least one silicon atom bonded to at least one hydrolyzable group.The resulting polyhydroxyl-functional addition products can be chain extended using organic polyisocyanates to produce isocyanate-terminated compounds which also contain silicon atoms directly bonded to hydrolyzable groups along the molecule chains.Type: GrantFiled: October 20, 1986Date of Patent: January 19, 1988Assignee: PPG Industries, Inc.Inventors: Debra L. Singer, Rostyslaw Dowbenko
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Patent number: 4709054Abstract: A method is provided for silylating organic substrates, utilizing a halogenated polysilane, such as 1,1,2,2-tetrachloro dimethyldisilane and an aromatic acyl halide, for example, trimellitic anhydride acid chloride in the presence of a transition metal catalyst.Type: GrantFiled: August 13, 1985Date of Patent: November 24, 1987Assignee: General Electric CompanyInventor: Jonathan D. Rich
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Patent number: 4705877Abstract: This invention pertains to novel silanes wherein the silicon atom is bonded to at least one ketoximo group and a carbon atom of a primary or secondary amino group. The remaining substituents on the silicon atom are alkoxy groups and/or monovalent hydrocarbon radicals.Type: GrantFiled: February 25, 1987Date of Patent: November 10, 1987Assignee: Dow Corning CorporationInventors: Gerald A. Gornowicz, Chi-Long Lee
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Patent number: 4705878Abstract: In accordance with the present method a ketoximoaminoalkylsilane is prepared by reacting a ketoxime of the formula RR'C.dbd.NOH with a silane of the formula ##STR1## where R and R' represent monovalent hydrocarbon radicals, each of the two substituents represented by R" is, individually, a monovalent hydrocarbon radical, a monovalent fluorinated hydrocarbon radical or an alkoxy radical, R"" represents a monovalent hydrocarbon radical or a hydrogen atom, and R'" represents an alkylene radical containing from 3 to 6 carbon atoms.Type: GrantFiled: February 25, 1987Date of Patent: November 10, 1987Assignee: Dow Corning CorporationInventors: Gerald A. Gornowicz, Chi-Long Lee
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Patent number: 4689419Abstract: This invention relates to the production of novel intermediate compounds which are useful in the process for producing 16-phenoxy- and 16-substituted phenoxy-9-keto-prostatrienoic acid derivatives, the antisecretory agents of U.S. Pat. No. 4,178,457.Type: GrantFiled: November 14, 1986Date of Patent: August 25, 1987Assignee: G. D. Searle & Co.Inventors: Paul W. Collins, Richard M. Weier
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Patent number: 4663373Abstract: Substituted aminoxy silane derivatives corresponding to the formula ##STR1## are effective in stabilizing organic materials against oxidative, thermal and actinic degradation, said derivatives being particularly effective as color improvers and process stabilizers in organic materials containing phenolic antioxidants and/or metal salts of fatty acids and/or hindered amine light stabilizers and/or organic phosphorus compounds.Type: GrantFiled: May 1, 1986Date of Patent: May 5, 1987Assignee: Ciba-Geigy CorporationInventors: Ramanathan Ravichandran, Thomas E. Snead
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Patent number: 4652664Abstract: Disclosed is a free-radical addition product of a mercapto-functional polyhydric alcohol and a vinyl-type silane having at least one hydrolyzable group directly attached to a silicon atom, the addition product prepared by reacting the mercapto-functional polyhydric alcohol and the vinyl-type silane in the presence of a free radical initiator. The addition product contains at least two hydroxyl groups bonded to carbon atoms and at least one silicon atom bonded to at least one hydrolyzable group.The resulting polyhydroxyl-functional addition products can be chain extended using organic polyisocyanates to produce isocyanate-terminated compounds which also contain silicon atoms directly bonded to hydrolyzable groups along the molecule chains.Type: GrantFiled: January 3, 1986Date of Patent: March 24, 1987Assignee: PPG Industries, Inc.Inventors: Debra L. Singer, Rostyslaw Dowbenko
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Patent number: 4645844Abstract: Novel and known functionally substituted phenoxyalkyl-, thiophenoxyalkyl- and pyridyloxyalkylsilanes are prepared by reacting substantially equimolar amounts of an alkali- or alkaline earth metal phenoxide, thiophenoxide or pyridyloxide with a haloalkylsilane under anhydrous conditions using a dipolar, aprotic solvent in combination with a liquid hydrocarbon.Type: GrantFiled: July 20, 1983Date of Patent: February 24, 1987Assignee: M&T Chemicals Inc.Inventors: Abe Berger, Irwin B. Silverstein
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Patent number: 4633004Abstract: Fluorosilanes containing at least one partially or totally fluorinated chain and at least one silicon chain linked with a thioether bridge, the fluorosilanes being prepared by radical addition of a silicon thiol to a fluorinated olefin, and the fluorosilanes being useful intermediates for the preparation of fluorinated silicones such as fluorinated silicone elastomers.Type: GrantFiled: November 12, 1985Date of Patent: December 30, 1986Assignee: AtochemInventors: Bernard Boutevin, Yves Pietrasanta
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Patent number: 4584318Abstract: A method is described for the control of nematodes in agricultural crops which comprises applying to the situs of infestation of a nematicidal composition containing as active ingredient a compound of the formula ##STR1## wherein Q is hydroxy, carbamoyloxy, or acyloxy, R is alkyl, alkenyl, alkynyl, X is halogen or methyl, n is 1 or 2. Preparation of active ingredient compounds is described, and nematicidal utility of compositions is exemplified.Type: GrantFiled: June 20, 1983Date of Patent: April 22, 1986Assignee: FMC CorporationInventors: Clinton J. Peake, Carmine P. DiSanzo, John F. Engel
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Patent number: 4571428Abstract: 6-Substituted-4-hydroxy-tetrahydropyran-2-ones, useful as anti-atherosclerotic agents, are obtainable by the process of the invention. The 6-substituents have a phenyl, naphthyl, tetrahydronaphthyl or indolyl nucleus bound through an ethenyl unit. The invention includes novel intermediates.Type: GrantFiled: July 8, 1983Date of Patent: February 18, 1986Assignee: Sandoz, Inc.Inventor: Prasad K. Kapa
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Patent number: 4570010Abstract: Disclosed is an improved process for the production of organic polyisocyanate-based molded polymers prepared from at least one organic polyisocyanate and at least one polyol wherein there is employed an internal mold release agent comprising an amino-polysiloxane having at least one group of the formulaRNH-alkylene--O--bonded to a silicon atom of a polysiloxane, wherein R is selected from the group consisting of hydrogen, lower-alkyl, cycloalkyl, and ECHR"CHR'-- wherein E is an electron withdrawing group and R' and R" are independently selected from the group consisting of hydrogen and methyl.The molding process can be repeated many times before the mold surfaces must be cleaned or treated with release agent. The ease of release of the molded polyurethanes makes the process particularly suitable for RIM production methods.Type: GrantFiled: March 23, 1983Date of Patent: February 11, 1986Assignee: The Upjohn CompanyInventors: Fred A. Stuber, George H. Temme
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Patent number: 4515702Abstract: A highly heat-resistant silicone fluid composition is proposed which comprises a conventional silicone fluid as the base component and a small amount of an additive organopolysiloxane modified with aromatic amino-containing groups such as 4-(p-semidino)phenyl, 4-(.alpha.-naphthylamino)phenyl and 4-(.beta.-naphthylamino)phenyl groups bonded to the silicone atoms either directly or through an oxygen atom.Type: GrantFiled: April 5, 1984Date of Patent: May 7, 1985Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Shigeru Mori, Yoshiaki Kudo, Satoshi Kuwata
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Patent number: 4496492Abstract: Novel antibacterially-active compound, 1,2,8,8a-cyclopropa[c]benzo[1,2-b:-4,3-b']dipyrol-4(5H)-one, prepared by a novel chemical process. This compound, as well as antibacterially-active intermediates, can be used to eradicate or control susceptible bacteria, for example, B. subtilis, K. pneumonia, S. lutea, S. aureus, and M. avium.Type: GrantFiled: July 19, 1983Date of Patent: January 29, 1985Assignee: The Upjohn CompanyInventor: Wendell Wierenga
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Patent number: 4481365Abstract: A trifluoromethyl-phenoxy-phenyl-silicon compound is disclosed of the general formula ##STR1## in which X.sup.1 and X.sup.2 independently of each other represent a hydrogen, fluorine, chlorine, bromine or iodine atom,Y represents a hydrogen or halogen atom or a cyano or nitro group,n is 0 or 1,m is 0, 1, 2 or 3,p is 0, 1, 2 or 3,X.sup.3 and X.sup.4 independently of each other represent oxygen or a --CO--O-- group,R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another represent a hydrogen atom or a C.sub.1 to C.sub.5 alkyl group,R.sup.5 and R.sup.6 independently of each other represent a C.sub.1 to C.sub.5 alkyl group, andR.sup.7 represents a C.sub.1 to C.sub.5 alkyl or hydroxyl group, a chlorine, bromine, or iodine atom or a C.sub.2 to C.sub.5 alkenoxy, C.sub.2 to C.sub.5 alkinoxy,C.sub.1 to C.sub.5 alkylthio, C.sub.2 to C.sub.5 alkenyl-thio or C.sub.2 to C.sub.5 alkinyl-thio group or a C.sub.1 to C.sub.Type: GrantFiled: October 12, 1982Date of Patent: November 6, 1984Assignee: Bayer AktiengesellschaftInventors: Heinz Forster, Ludwig Eue, Robert Schmidt, Klaus Lurssen
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Patent number: 4476290Abstract: Disclosed is a photocurable silicon compound composition which comprises a silicon compound having a silicon atom to which directly bonded is an o-nitrobenzyloxy group represented by the following formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may be same or different and each represents a hydrogen atom, a halogen atom, a nitro group, a cyano group, a substituted or unsubstituted alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, a substituted or unsubstituted aryl group, an aryloxy group, an acyloxy group having 1 to 5 carbon atoms, a hydroxy group, a mercapto group, an acetyl group or an allyl group,and optionally a silanol-condensing catalyst.Type: GrantFiled: September 16, 1983Date of Patent: October 9, 1984Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventors: Shuzi Hayase, Yasunobu Onishi
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Patent number: 4413132Abstract: Novel antibacterially-active compound, 1,2,8,8a-cyclopropa[c]-benzo[1,2-b:-4,3-b']dipyrol-4(5H)-one, prepared by a novel chemical process. This compound, as well as antibacterially-active intermediates, can be used to eradicate or control susceptible bacteria, for example, B. subtilis, K. pneumonia, S. lutea, S. aureus, and M. avium.Type: GrantFiled: February 8, 1982Date of Patent: November 1, 1983Assignee: The Upjohn CompanyInventor: Wendell Wierenga
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Patent number: 4405801Abstract: Disclosed are silicon-containing nitro dyes for dying organic polymers or organosiloxanes, which are reactive dyes for synthetic or natural fibers of vegetable or animal origin, having the formula: ##STR1## wherein the chromophore component is bonded with the Si-atom by homopolar bonds and wherein X represents the same or different hydrolyzable groups or a siloxane radical, Z is a bivalent alkylene radical with 1-10 carbon atoms which may be interrupted by NR' groups, R is a monovalent organic radical, R' is hydrogen, alkyl with 1-10 carbon atoms, aryl, aralkyl or said substituted radicals, Ar is a substituted or unsubstituted aryl radical, and a and b are integers from 1-3, and a process for making said dyes. Said dyes may be built into a large number of organic and inorganic molecules and color the same without fixation.Type: GrantFiled: June 24, 1982Date of Patent: September 20, 1983Assignee: VEB Chemiewerk NunchritzInventors: Bodo Hirsch, Gunter Horn, Hellmut Reuther
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Patent number: 4403099Abstract: Disclosed are silicon-containing nitro dyes of the formula: ##STR1## wherein the coloring component is bonded with a Si-atom by homopolar bonds and whereinX represents same or different hydrolyzable groups or a silicone radical;Z is a bivalent alkylene radical with 2 to 10 C-atoms, which may be interrupted by oxygen and may also contain cyclic radicals, and wherein .sup.1 C and .sup.2 C may be parts of a cycloalkyl ring;R is a monovalent organic radical;Ar is a substituted or unsubstituted aryl radical;a and b are integers from 1-3;and a process for making said dyes. Said dyes may be built into the polymer molecules or affixed to fibers without additional fixation.Type: GrantFiled: February 26, 1982Date of Patent: September 6, 1983Assignee: VEB Chemiewerk NunchritzInventors: Bodo Hirsch, Gunter Horn, Hellmut Reuther
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Patent number: 4400527Abstract: A Group IVa metal halide such as methyl trichlorosilane is reacted with an oxime compound such as methyl ethyl ketone oxime in the absence of a base to form in high yields a product oximinosilane, oximinogermane or oximinostannane (e.g. methyl tris(methyl ethyl ketoximo)silane) and a by-product oxime hydrohalide. The oxime above that found in the product may be recovered by neutralization of the by-product oxime hydrohalide.Type: GrantFiled: December 17, 1981Date of Patent: August 23, 1983Assignee: Allied CorporationInventors: Chempolil T. Mathew, Harry E. Ulmer
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Patent number: 4384131Abstract: A process whereby silanes of the general formulaHSi(NRR.sup.I).sub.x (R.sup.II).sub.3-xare reacted in the presence of a catalyst with oximes or hydroxylamines in the stoichiometry of approximately one equivalent of oxime or hydroxylamine per mole of silicon-nitrogen linkage to give unexpectedly high yields of substituted silanes.Type: GrantFiled: July 13, 1982Date of Patent: May 17, 1983Assignee: Union Carbide CorporationInventors: Bernard Kanner, Steven P. Hopper
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Patent number: 4381377Abstract: A homo- or copolymer of a 1,3-diene bound to reactive silyl groups, whereby it contains 0.4-12% by weight of bound silicon, is prepared by reacting, at a temperature of 190.degree.-300.degree. C., a 1,3-diene homo- or copolymer, with more than 1% of its aliphatic double bonds in conjugation and having a molecular weight (Mn) of 400-6,000, with a silane of the formula ##STR1## wherein R is an unsaturated aliphatic hydrocarbon radical of 2-20 carbon atoms,X is halogen, C.sub.1-6 alkoxy, C.sub.1-6 alkoxyalkoxy, C.sub.6-12 aryloxy, C.sub.1-8 alkanoyloxy, C.sub.1-6 ketoximato or C.sub.1-10 hydrocarbylamido, andY and Z are independently one of the X groups, hydrogen, alkyl of 1-8 carbon atoms, cycloalkyl of 5-12 carbon atoms, or optionally substituted phenyl.Type: GrantFiled: February 2, 1981Date of Patent: April 26, 1983Assignee: Chemische Werke Huels, AGInventors: Wolfgang Kampf, Roland Streck, Horst-guenter Haag
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Patent number: 4380660Abstract: A silicon halide such as methyl trichlorosilane is reacted with an alcohol such as isopropanol and an oxime such as methyl ethyl ketone oxime. Byproduct oxime hydrohalide is formed in all cases. With higher amounts of alcohol, alkoxysilane (e.g. methyl triisopropoxysilane) is the sole or major product. With lower amounts of alcohol, alkoxy-oxminosilanes (e.g. methyl diisopropoxy(methyl ethyl ketoximo)silane and methyl isopropoxy bis(methyl ethyl ketoximo)silane) are the major products.Type: GrantFiled: July 1, 1982Date of Patent: April 19, 1983Assignee: Allied CorporationInventors: Chempolil T. Mathew, Harry E. Ulmer
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Patent number: 4363925Abstract: Aromatic silanes are prepared by reacting an aromatic halogen compound with a disilane in the presence of a palladium complex and a phosphite or phosphine.The aromatic silanes obtainable by the process of the invention are valuable intermediates for the preparation of drugs, dyes and pesticides.Type: GrantFiled: January 15, 1982Date of Patent: December 14, 1982Assignee: BASF AktiengesellschaftInventors: Rolf-Dieter Acker, Gerhard Hamprecht, Franz-Josef Mueller
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Patent number: 4360686Abstract: Active hydrogen-containing compounds are silylated by contacting with trimethylsilyl trichloroacetate at elevated temperatures in the presence of an initiator.Type: GrantFiled: September 3, 1981Date of Patent: November 23, 1982Assignee: The Dow Chemical CompanyInventors: Pen-Chung Wang, James M. Renga
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Patent number: 4319034Abstract: The invention provides a novel class of cyclic organotetrasiloxanes represented by the general formula ##STR1## in which R.sup.1 is a monovalent hydrocarbon group, e.g. methyl, Y is a hydrogen atom or a dialkylaminoxy group and X is a hydrocarbylideneiminopropyl group.Type: GrantFiled: December 19, 1980Date of Patent: March 9, 1982Assignee: Shin-Etsu Chemical Co., Ltd.Inventor: Masatoshi Arai
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Patent number: 4288603Abstract: Accelerators useful for the cure of epoxy resin compositions are derived from the silylation of substituted catechol derivatives.Type: GrantFiled: July 14, 1980Date of Patent: September 8, 1981Assignee: General Electric CompanyInventor: Charles J. Stark, Jr.
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Patent number: 4278666Abstract: The invention provides a novel class of organosilicon compounds and a method for the preparation thereof as well as an anti-tumor agent containing the compound having very remarkable anti-tumor activity but with very low toxicity. The inventive compound is a (trihydrocarbylsilylmethyloxyimino)alkane, which is a silicon-containing oxime compound hitherto not described in any prior art literatures, represented by the general formula R.sup.1.sub.3 Si--CH.sub.2 --O--N.dbd.Y, R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group having from 1 to 10 carbon atoms and Y is a divalent hydrocarbon group denoted by .dbd.CR.sup.2 R.sup.3 or .dbd.CR.sup.4, R.sup.2 and R.sup.3, which may be identical or different, having the same meaning as R.sup.1 defined above and R.sup.4 being an alkylene group to form a ring structure jointly with the carbon atom directly bonded to the nitrogen atom.Type: GrantFiled: February 26, 1980Date of Patent: July 14, 1981Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Shigeshi Toyoshima, Ryuichi Sato, Koichi Ito, Toshio Shinohara, Yasushi Yamamoto
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Patent number: 4275184Abstract: The invention provides organosilicon compounds of the formula: ##STR1## in which: n is 1, 2 or 3;each R, which may be identical or different, is a monovalent organic group which contains a carbon-carbon double bond and from 2 to 10 carbon atoms;each R.sub.1, which may be identical or different, is a straight or branched alkyl radical optionally substituted by one or more halogen atoms or cyano groups; an aryl radical or an alkylaryl radical optionally substituted by one or more halogen atoms;R.sub.2 is a straight or branched divalent alkylene or alkylidene radical possessing up to 4 carbon atoms;X is a divalent radical consisting of, or containing, at least one hetero-atom selected from oxygen, sulphur and nitrogen atoms, the radical being attached to the radical R.sub.2 via a said hetero-atom;G is an organic radical of valency (m+1) possessing from 1 to 30 carbon atoms;m is 1, 2 or 3;and each Y, which may be identical or different, is a functional group selected from ##STR2## wherein R.sub.Type: GrantFiled: October 26, 1979Date of Patent: June 23, 1981Assignee: Rhone-Poulenc IndustriesInventors: Michel Bargain, Marcel Lefort
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Patent number: 4247430Abstract: An aqueous based slurry is described comprising (1) a thickened water-based carrying fluid, (2) a particulate solid, e.g., gravel, and (3) a resin system comprising an epoxy resin and a novel crosslinking agent. The cross-linking agent is a polymethylene polyphenylamine bearing one or more silane groups of the formula--CH.sub.2 CH(OH)CH.sub.2 O--C.sub.3 -C.sub.6 alkylene --Si(OR').sub.3,wherein each R' independently is hydrogen or lower alkyl. This pumpable slurry is suitable for use in emplacing a permeable, consolidated gravel pack between the casing of a well and an incompetent subterranean formation. The slurry is easily formed on site by merely blending the components in an appropriate ratio using conventional equipment.Type: GrantFiled: April 11, 1979Date of Patent: January 27, 1981Assignee: The Dow Chemical CompanyInventor: Vernon G. Constien
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Patent number: 4228092Abstract: An improvement in a process for the esterification of a organochlorosilane by feeding alcohol into a chlorosilane maintained within a reaction zone without said alcohol contacting said chlorosilane in the gas phase wherein the esterification is performed stepwise with extraction of hydrogen chloride which has developed, the improvement which comprises employing in at least a final esterification step an organochlorosilane of the formulaH.sub.a R.sub.b SiCl.sub.4-a-bwhereinR represents an optionally halogen-substituted alkyl radical which can also contain an oxygen or sulfur atom in the chain, or a halogen or a NO.sub.2 group or a protected phenolic group containing aryl radical,a equals 0, 1, or 2,b equals 1 or 2, anda+b amounts to a maximum of 3,said final esterification step being performed with the addition of heat.Type: GrantFiled: January 2, 1979Date of Patent: October 14, 1980Assignee: Dynamit Nobel AktiengesellschaftInventors: Hans-Joachim Kotzsch, Claus-Dietrich Seiler, Hans-Joachim Vahlensieck
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Patent number: 4221736Abstract: A method for producing an explosive ingredient bis-(3,3-dinitrobutyl)-polloxane is described.Type: GrantFiled: August 14, 1978Date of Patent: September 9, 1980Assignee: The United States of America as represented by the Secretary of the NavyInventors: Kurt Baum, Duane A. Lerdal